1042520020 has 24 divisors (see below), whose sum is σ = 2200762368. Its totient is φ = 414823200.

The previous prime is 1042520009. The next prime is 1042520041. The reversal of 1042520020 is 200252401.

It is a junction number, because it is equal to n+sod(n) for n = 1042519976 and 1042520003.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132636 + ... + 140275.

It is an arithmetic number, because the mean of its divisors is an integer number (91698432).

Almost surely, 2^1042520020 is an apocalyptic number.

1042520020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1042520020 is an abundant number, since it is smaller than the sum of its proper divisors (1158242348).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1042520020 is a wasteful number, since it uses less digits than its factorization.

1042520020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273111 (or 273109 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 1042520020 is about 32288.0786049588. The cubic root of 1042520020 is about 1013.9770712979.

Adding to 1042520020 its reverse (200252401), we get a palindrome (1242772421).

The spelling of 1042520020 in words is "one billion, forty-two million, five hundred twenty thousand, twenty".